package com.feng.reggie.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理器
 */

@Slf4j
@ResponseBody
@ControllerAdvice(annotations = {RestController.class, Controller.class})
public class GlobalExceptionHandler {

    /**
     * 异常处理方法（用于阻止添加相同名字的员工和菜品等）
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());

        //异常信息为：Duplicate entry 'zhangsan' for key 'idx_username'
        if(ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");//以空格为分割点分割字符串放入数组
            String msg = split[2] + "已存在";//zhangsan在索引第二个位置
            return R.error(msg);
        }

        return R.error("未知错误");
    }

    /**
     * 异常处理方法（用于阻止删除关联了菜品或套餐的分类信息）
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());

        return R.error(ex.getMessage());
    }

}
